At 11:07 PM 10/29/2004 -0400, Jan wrote:
>Randy, take a look at what I just posted (renaissance-1.jpg).
Thank you for the upload, Jan. The border is actually a light cream color,
I think simulating a matting.
What I meant by "non-color-corrected" was that I have raw scans of
Renascence as they came off the scanner. I also scanned an IT8 color
target, which is a photographic image of an array of color samples, which
came with a file describing their absolute RGB color values. Some image
editing software--Photoshop and Picture Window Pro (which I use) are two
examples--has the capability built in to load a scan of an IT8 target along
with its RGB calibration file, and compare to the "perceived" scanned
colors to come up with a color compensation of the difference. You can
then apply the compensation to another image scanned under the same
conditions, to give it device-independent colors.
This afternoon, I took my courage in both hands and painted my copy of
Renescance with Bestine solvent all over its front surface, and freed it
from the cardboard backing and remaining masking tape. It is now drying,
flattened between two pieces of nice plotter paper.
Renascence actually has fairly muted colors, rather impressionistic. I've
never seen the original (does it still exist?) but from the calendar top it
looks to me like a watercolor.
I'm in the fortunate position of working for an employer who makes
scientific imaging equipment among other things. We have the very nice
Microtek 9800XL scanner on loan for evaluation, and it has 48-bit color
depth. Now that the print is freed from its cardboard restraint, I can
re-scan it. My intention for doing the "final" scans is to image the IT8
target on the edge of each segmented scan and do the color compensation
individually before mosaicing the scans. This should give the best color
compensation possible.
Now I just need to find the panorama stitching software that will let me
keep the maximum resolution and color depth while staying within Windows'
memory addressability limitations (or I might install a dual-boot of Linux,
which might not have the 2GB memory limitation--I haven't checked yet...)
Best regards,
Randy
Randy Gordon-Gilmore ,----.___________ ______________ _________________
ProtoTrains // = = === == || == == == = || == == == = == =|
Rio Vista, CA, USA /-O==O------------o==o------------o==o-----------o==o-'
zephyrus@rickadee.net http://www.prototrains.com
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